Dear Sir or Madam,
Hello.
My customer would like to input the below format into i.MX 6DQ.
====
Format : BT.709 YUV422 / 8 bit
Resolution : 720p (720 x 1280)
Frame rate : 60 fps
Bus width : 16bit (1cycle)
====
I found the below description on IMX6DQAEC(Rev.3).
"YCbCr, 16 bits—Supported as a sub-case of the YCbCr,20 bits, under the same conditions (BT.1120 protocol)"
So, above format looks support in i.MX6DQ.
[Question]
Is it possible to support the above format in i.MX6DQ?
(Is the performance, too, OK?)
Best Regards,
Keita
Solved! Go to Solution.
Hi Keita
yes this format can be supported in i.MX6DQ, performance is
described in IMX6DQRM p.2732
The input rate supported by the camera port is as follows:
For parallel interface, the maximum speed of the interface is 240Mhz. The required
operating frequency of the interface is calculated in the following way:
F = FH * FW * FPS * BI * DF
Where
• FH = frame height (in pixels)
• FW = Frame width (in pixels)
• fps = frame rate (frames per second)
• BI = typically 35% overhead, should be assumed as 1.35. The actual blanking
intervals are a parameter of the attached device.
• DF = data format, defines the number of cycles needed to send a single pixel.
The number of cycles needed to send a single pixel depends on the interface and the data
format.
Data format examples:
• YUV422 over 16 bit = 1 cycles/pixel
• RGB888 over 8 bit = 3 cycles/pixel
• RGB565 over 16 bit = 2 cycles/pixel
• Bayer/Generic data = 1 cycle/pixel
• YUV422 over 8 bit = 2 cycles/pixel
• BT.656, YUV422 format = 2 cycles/pixel
• BT.1120, YUV422 format = 1 cycle/pixel
Examples of supported interfaces:
• 3.2MP camera, 15fps, yuv422 format, 8 bit interface
• 1080P30, yuv422, 8 bit interface
Best regards
igor
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-----------------------------------------------------------------------------------------------------------------------
Hi Keita
yes this format can be supported in i.MX6DQ, performance is
described in IMX6DQRM p.2732
The input rate supported by the camera port is as follows:
For parallel interface, the maximum speed of the interface is 240Mhz. The required
operating frequency of the interface is calculated in the following way:
F = FH * FW * FPS * BI * DF
Where
• FH = frame height (in pixels)
• FW = Frame width (in pixels)
• fps = frame rate (frames per second)
• BI = typically 35% overhead, should be assumed as 1.35. The actual blanking
intervals are a parameter of the attached device.
• DF = data format, defines the number of cycles needed to send a single pixel.
The number of cycles needed to send a single pixel depends on the interface and the data
format.
Data format examples:
• YUV422 over 16 bit = 1 cycles/pixel
• RGB888 over 8 bit = 3 cycles/pixel
• RGB565 over 16 bit = 2 cycles/pixel
• Bayer/Generic data = 1 cycle/pixel
• YUV422 over 8 bit = 2 cycles/pixel
• BT.656, YUV422 format = 2 cycles/pixel
• BT.1120, YUV422 format = 1 cycle/pixel
Examples of supported interfaces:
• 3.2MP camera, 15fps, yuv422 format, 8 bit interface
• 1080P30, yuv422, 8 bit interface
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
Hi Igor,
Hello.
Thank you very much!
Best Regards,
Keita